Muzzleloader Ballistics

Sabot Ballistics

Except where noted, the following table shows typical ballistics of various .451 to .454 caliber bullets in a .58 caliber sabot manufactured by Muzzleload Magnum Products, RR 6, Harrison, AR 72601 (Warning: Do not exceed the recommendations of the manufacturer of your firearm!):

185-200 Grain Bullet in .58 Sabot

Blackpowder

Pyrodex RS

80 g FF - 1480 fps

80 Equiv - 1390 fps

90 g FF - 1525 fps

90 Equiv - 1450 fps

100 g FF - 1575 fps

100 Equiv - 1460 fps

225-240 Grain Bullet in .58 Sabot

Blackpowder

Pyrodex RS

80 g FF - 1400 fps

80 Equiv - 1375 fps

90 g FF - 1490 fps

90 Equiv - 1400 fps

100 g FF - 1575 fps

100 Equiv - 1450 fps

250-260 Grain Bullet in .58 Sabot

Blackpowder

Pyrodex RS

80 g FF - 1400 fps

80 Equiv - 1375 fps

90 g FF - 1490 fps

90 Equiv - 1400 fps

100 g FF - 1575 fps

100 Equiv - 1450 fps

Roundball/Maxiball Ballistics

Below are Thompson/Center Arms' suggested loads from a paper publication of theirs, printed in October of 1980. All of these loads specify no. 11 caps or T/C flints. Round ball loads specify T/C patch material lubricated with T/C no. 13. Maxi-ball loads specify the use of Maxi-Lub as a lubricant. FPS = feet per second at muzzle. Ft-lbs = foot-pounds of energy at muzzle. Grains listed after projectile type represent bullet weight.